According to datasheet, the output on LDO regulators will start appearing after 10-15 us.
Signed-off-by: Krzysztof Kozlowski krzk@kernel.org --- drivers/power/regulator/s2mps11_regulator.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/power/regulator/s2mps11_regulator.c b/drivers/power/regulator/s2mps11_regulator.c index 723d27f67c9a..1f1581852ee2 100644 --- a/drivers/power/regulator/s2mps11_regulator.c +++ b/drivers/power/regulator/s2mps11_regulator.c @@ -551,7 +551,14 @@ static int ldo_get_enable(struct udevice *dev)
static int ldo_set_enable(struct udevice *dev, bool enable) { - return s2mps11_ldo_enable(dev, PMIC_OP_SET, &enable); + int ret; + + ret = s2mps11_ldo_enable(dev, PMIC_OP_SET, &enable); + + /* Wait the "enable delay" for voltage to start to rise */ + udelay(15); + + return ret; }
static int ldo_get_mode(struct udevice *dev)